Abstract
Severe flood inundation disaster happened in Ogurisu area, Kyoto City, on September 16, 2013. During that disaster the pumping station stopped its function due to an accident, which have caused severe inundation disasters in the surrounding area with more than two meter inundation depth. In this study, effects of that pump failure on the inundation disaster are evaluated through numerical simulation. From the simulation results, it is clear that the pump failure had affected the Ogurisu area significantly comparing with the simulation results with normal pump function. Finally we present a simulation result under the assumption of complete disorder of pump function, which shows much severer inundation damage, as a suggestion of preparatory hazard map for inundation disasters due to heavy rainfall considering one of the worst situations with pump failure.
